EP1160429A2 - Direkteinspritzende Brennkraftmaschine - Google Patents
Direkteinspritzende Brennkraftmaschine Download PDFInfo
- Publication number
- EP1160429A2 EP1160429A2 EP01111231A EP01111231A EP1160429A2 EP 1160429 A2 EP1160429 A2 EP 1160429A2 EP 01111231 A EP01111231 A EP 01111231A EP 01111231 A EP01111231 A EP 01111231A EP 1160429 A2 EP1160429 A2 EP 1160429A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- switching element
- section
- air flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4235—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels
- F02F1/4242—Shape or arrangement of intake or exhaust channels in cylinder heads of intake channels with a partition wall inside the channel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
- F02B31/06—Movable means, e.g. butterfly valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a direct injection internal combustion engine, with at least one Inlet duct for air application to an assigned cylinder, wherein in At least one inlet valve and an injection valve are arranged in accordance with Preamble of claim 1.
- a direct injection internal combustion engine of the type mentioned here is known (DE 197 53 965 A1).
- An internal combustion engine designed in this way allows disadvantageously not a variable adjustment of the air flow through the Inlet channel, in particular with regard to an air flow profile to be achieved to achieve an improved combustion in the combustion chamber of the cylinder.
- a direct-injection internal combustion engine with the Features of claim 1 proposed which is characterized in that a in the inlet channel extending switching element for setting the Flow cross section of the inlet channel is provided.
- a in the inlet channel extending switching element for setting the Flow cross section of the inlet channel is provided.
- switching element can in a reliable manner Flow cross-section of the inlet channel to achieve a desired Air flow profile and thus an improved combustion in the combustion chamber of the cylinder can be adjusted.
- This is due to the integration of the switching element and the injection valve in the intake port, the direct injection internal combustion engine compact design.
- the installation space directly adjacent to the inlet duct can thus used for the arrangement of further functional elements of the internal combustion engine become.
- the setting of the flow cross section of the inlet channel by means of the Switching element can be, for example, in the form of a division of the inlet channel into one lower flow space, which is not in the closed position of the switching element or less air flow, and take place in an upper flow space, which an operationally favorable or combustion-favorable flow profile of the Inlet duct penetrating air generated. It is thus by means of the switching element possible, an economical and variable air exposure of a corresponding To achieve cylinders and at the same time a compact assembly consisting of cylinders, To ensure inlet channel, inlet valve, injection valve and switching element.
- the injection valve advantageously penetrates the switching element. This enables that the switching element in the inlet channel up to the area of the injection valve or can extend beyond this area and thus in a particularly effective manner Generation of a desired air flow pattern from the inlet duct into the Combustion chamber of the cylinder allowed.
- the switching element preferably has an essentially in the air flow direction of the inlet channel extending oval opening in which the for Air flow direction inclined injector is added.
- Such a trained switching element enables effective adjustment of the Flow cross-section of the inlet channel and a compact design of this Assembly consisting of intake duct, intake valve, injection valve and switching element.
- the injection valve is in at least one extending in the inlet channel, rib-shaped projection of an associated Cylinder head partially added.
- the partial inclusion and support of the Injector thus mainly takes place through the cylinder head or through its rib-shaped projection protruding into the inlet channel. This makes possible, to form the switching element thin-walled, so that the smallest possible Installation volume is occupied by the switching element in the inlet duct. Since that Switching element no or only a subordinate support function has in terms of the injector, it can thus as flexible aerodynamic functional element are formed.
- the injection valve advantageously has an aerodynamic, in particular oval Cross-section, with the longitudinal axis of the oval cross-section in the air flow direction lies.
- the injection valve can, according to an alternative Embodiment may also be wing-shaped, for example, so that a aerodynamic and relatively small disruptive surface an operational Flow around the portion of the injection valve located in the inlet channel is permitted.
- the flow cross section of the Adjust inlet channel variably, at the same time being oval or in cross section wing-shaped injection valve in the intake duct flows around air in a streamlined manner becomes.
- the oval opening of the switching element preferably contains at least one more curved end a bulge through which the associated projection of the cylinder head penetrates the switching element. Since the switching element is none or a subordinate support function with regard to the Injector has, for example, as a thin-walled, in the Sheet metal extending essentially in the air flow direction in the inlet duct be the one with the respective cross section of the same penetrating elements (Injection valve, projection) adapted through opening can be provided.
- the switching element advantageously has one that extends in the air flow direction Guide plate and a switching flap on which to adjust the Flow cross-section of the inlet channel between an open and an closed operating position is pivotable.
- the switching element can be such be designed so that when the switching flap is in the open operating position, it is almost closed the entire flow cross-section of the intake duct in enters the combustion chamber of the cylinder while closed Operating position of the switching flap of the flow cross section of the inlet channel is limited to an upper part, for example.
- One in the inlet duct arranged guide plate is relatively easy to manufacture in terms of production technology and particularly suitable, by means of an active connection with an upstream arranged switching flap in a reliable manner a desired setting or variation of the flow cross-section of the inlet channel to effect a corresponding pivoting movement of the switching flap.
- the guide plate is preferably cast into the cylinder head. Such a thing
- the integrated guide plate in the cylinder head is manufactured using a suitable casting process relatively easy to implement.
- the projection has one aerodynamically favorable cross section with a convex configuration in the air flow direction Outside surface on.
- FIGS 1 to 4 show a cylinder designated 10 of a direct injection Internal combustion engine, the inlet side with an intake pipe 11 and the outlet side an exhaust pipe 28 is operatively connected.
- the cylinder 10 is a in a conventional manner Piston 23 added.
- the suction pipe 11 contains an inlet channel 12 which is in operation to apply air to the cylinder 10 fresh air in the air flow direction according to arrow 19 promotes.
- the inlet channel 12 is known per se by means of the same arranged intake valve 13 with a combustion chamber of the cylinder 10 connected.
- the combustion chamber of the cylinder 10 is also on known manner by means of an outlet valve 24 with an outlet channel 27 of the Exhaust pipe 28 operatively connected.
- injection valve 14 (high pressure injection valve) passes through the inlet channel 12 of the suction pipe 11 and is in a known manner with the combustion chamber of the Cylinder 10 operatively connected.
- To adjust the flow cross section of the An inlet channel 12 is provided with a switching element 15 extending in the same.
- the switching element 15 is essentially in the air flow direction 19 extending guide plate 25 and a switching flap 22, which for setting the Flow cross section of the inlet channel 12 between an open Operating position (not shown) and a closed operating position (see Figures 1 and 4) according to double arrow 26 is pivotable about an axis.
- the Guide plate 25 has an essentially in the air flow direction (arrow 19) extending, continuous, oval opening 16 in which the for Air flow direction 19 inclined injector 14 is added.
- the Injection valve 14 thus passes through the inlet channel 12 and in it Switching element 15 arranged essentially in the direction of air flow (arrow 19) or its guide plate 25.
- the injection valve 14 is located in a rib-shaped projection 17 of a cylinder 10 assigned Cylinder head 18 partially received or supported. Since that too rib-shaped projection 17 of the cylinder head 18, the inlet channel 12 under one Angle of approximately 45 ° to the air flow direction (arrow 19) according to the The injection valve 14 passes through, the oval opening 16 of the switching element 15th or the guide plate 25 with a corresponding bulge 21 (see Figure 2) provided in which the projection 17 is received.
- the oval Opening 16 is designed such that its longitudinal axis in the air flow direction (arrow 19) lies.
- the cross section of the injection valve 14 is corresponding to the Opening 16 adapted and preferably oval with the longitudinal axis of the oval in the direction of air flow (arrow 19).
- the guide plate 25 of the switching element 15 can be cast in the cylinder head 18 and is used when the switching flap 22 is in the closed operating position (see FIGS and 4) which according to arrow 19 in the air flow direction through the inlet duct 12 of the Intake pipe 11 flowing air through a partial cross section of the inlet channel 12 to To guide cylinder 10 and thus an inlet side in the combustion chamber of the cylinder 10 to produce the desired, preferably roller-like flow profile, through the one improved and more efficient combustion in cylinder 10 can be obtained.
- the partial cross-section of the inlet channel 12 is mentioned limited to an upper region of the inlet channel 12. If the switching flap 22 is pivoted into an open operating position according to double arrow 26, with release of the lower one not previously accessible to the air flowing through the inlet duct 12 Part of the flow cross-section of the inlet channel 12, the Air exposure to the combustion chamber of the cylinder 10 using almost the total flow cross section of the inlet channel 12.
- the exhaust gas generated during combustion in the combustion chamber of the cylinder 10 is - as is known per se - according to arrow 20 through the outlet duct 27 of the exhaust pipe 28 led to further, not shown functional units of the internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- Figur 1
- eine schematische Darstellung eines mit einem Einlasskanal und einem Auslasskanal wirkverbundenen Zylinders einer direkteinspritzenden Brennkraftmaschine;
- Figur 2
- eine schematische Darstellung eines Schnitts gemäß der Schnittlinie II-II durch die Anordnung der Figur 1;
- Figur 3
- eine schematische Darstellung eines Schnitts gemäß der Schnittlinie III-III durch die Anordnung der Figur 1 und
- Figur 4
- eine schematische Darstellung der Anordnung der Figur 1 mit Zylinderkopf.
Claims (9)
- Direkteinspritzende Brennkraftmaschine, mit wenigstens einem Einlasskanal zur Luftbeaufschlagung eines zugeordneten Zylinders, wobei im Einlasskanal wenigstens ein Einlassventil und ein Einspritzventil angeordnet sind, dadurch gekennzeichnet, dass ein sich im Einlasskanal (12) erstreckendes Schaltelement (15) zur Einstellung des Durchströmungsquerschnitts des Einlasskanals (12) vorgesehen ist.
- Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Einspritzventil (14) das Schaltelement (15) durchsetzt.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schaltelement (15) eine im Wesentlichen in Luftströmungsrichtung (19) des Einlasskanals (12) sich erstreckende ovale Öffnung (16) aufweist, in welcher das zur Luftströmungsrichtung (19) geneigt angeordnete Einspritzventil (14) aufgenommen ist.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Einspritzventil (14) in wenigstens einem sich im Einlasskanal (12) erstreckenden, rippenförmigen Vorsprung (17) eines zugeordneten Zylinderkopfes (18) teilweise aufgenommen ist.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Einspritzventil (14) einen strömungsgünstigen, insbesondere ovalen Querschnitt aufweist, wobei die Längsachse des ovalen Querschnitts in Luftströmungsrichtung (19) liegt.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die ovale Öffnung (16) des Schaltelements (15) an wenigstens einem stärker gekrümmten Ende eine Ausbuchtung (21) aufweist, durch welche der zugehörige Vorsprung (17) des Zylinderkopfes (18) das Schaltelement (15) durchsetzt.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Schaltelement (15) ein sich in Luftströmungsrichtung (19) erstreckendes Führungsblech (25) und eine Schaltklappe (22) aufweist, die zur Einstellung des Durchströmungsquerschnitts des Einlasskanals (12) zwischen einer offenen und einer geschlossenen Betriebsstellung schwenkbar ist.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Führungsblech (25) in den Zylinderkopf (18) eingegossen ist.
- Brennkraftmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Vorsprung (17) einen strömungsgünstigen Querschnitt mit in Luftströmungsrichtung (19) konvex ausgebildeter Außenfläche aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10026377A DE10026377A1 (de) | 2000-05-27 | 2000-05-27 | Direkteinspritzende Brennkraftmaschine |
DE10026377 | 2000-05-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1160429A2 true EP1160429A2 (de) | 2001-12-05 |
EP1160429A3 EP1160429A3 (de) | 2002-11-13 |
EP1160429B1 EP1160429B1 (de) | 2005-06-01 |
Family
ID=7643827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01111231A Expired - Lifetime EP1160429B1 (de) | 2000-05-27 | 2001-05-15 | Direkteinspritzende Brennkraftmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1160429B1 (de) |
DE (2) | DE10026377A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2527639A1 (de) * | 2011-05-24 | 2012-11-28 | Yamaha Hatsudoki Kabushiki Kaisha | Viertaktmotor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753965A1 (de) | 1997-12-05 | 1999-06-10 | Audi Ag | Direkteinspritzende Brennkraftmaschine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1911177A1 (de) * | 1969-03-05 | 1970-09-17 | Schmidt Dr Ing Habil Fritz A F | Verfahren der Gemischichtung im Brennraum von Ottomotoren oder aehnlichen Motortypen |
DE2035939B1 (de) * | 1970-07-20 | 1972-02-03 | Kloeckner Humboldt Deutz Ag | Zylinderkopf für Brennkraftmaschinen |
DE3137982C2 (de) * | 1981-09-24 | 1986-05-28 | Audi AG, 8070 Ingolstadt | Brennkraftmaschine, insbesondere Diesel-Brennkraftmaschine mit Direkteinspritzung |
JPH07119592A (ja) * | 1993-09-06 | 1995-05-09 | Yamaha Motor Co Ltd | 燃料噴射式2バルブエンジン |
JPH07119472A (ja) * | 1993-10-19 | 1995-05-09 | Fuji Heavy Ind Ltd | エンジンの吸気装置 |
US5915353A (en) * | 1997-05-21 | 1999-06-29 | Nissan Motor Co., Ltd | Cylinder direct injection spark-ignition engine |
FR2770875B1 (fr) * | 1997-11-13 | 1999-12-24 | Renault | Moteur a combustion interne a allumage commande, a injection directe et a bougie decalee |
DE19754736C1 (de) * | 1997-12-10 | 1999-04-15 | Porsche Ag | Saugkanal für eine Brennkraftmaschine |
EP0953758B1 (de) * | 1998-04-21 | 2003-10-08 | Ford Global Technologies, Inc., A subsidiary of Ford Motor Company | Zylinderkopf |
JP3534634B2 (ja) * | 1999-01-06 | 2004-06-07 | 株式会社日立製作所 | 内燃機関の制御装置 |
US6230484B1 (en) * | 1999-08-02 | 2001-05-15 | Ford Global Technologies, Inc. | Direct injection engine control with a fuel vapor purge system |
-
2000
- 2000-05-27 DE DE10026377A patent/DE10026377A1/de not_active Withdrawn
-
2001
- 2001-05-15 DE DE50106368T patent/DE50106368D1/de not_active Expired - Lifetime
- 2001-05-15 EP EP01111231A patent/EP1160429B1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753965A1 (de) | 1997-12-05 | 1999-06-10 | Audi Ag | Direkteinspritzende Brennkraftmaschine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2527639A1 (de) * | 2011-05-24 | 2012-11-28 | Yamaha Hatsudoki Kabushiki Kaisha | Viertaktmotor |
US20120298074A1 (en) * | 2011-05-24 | 2012-11-29 | Yamaha Hatsudoki Kabushiki Kaisha | Four-stroke engine |
US9458807B2 (en) | 2011-05-24 | 2016-10-04 | Yamaha Hatsudoki Kabushiki Kaisha | Four-stroke engine |
Also Published As
Publication number | Publication date |
---|---|
EP1160429B1 (de) | 2005-06-01 |
DE50106368D1 (de) | 2005-07-07 |
EP1160429A3 (de) | 2002-11-13 |
DE10026377A1 (de) | 2001-11-29 |
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